DT-DIATOOL Dry Diamond Polishing Pads 4" (100mm) Grit 50 — 8-Pack, Flexible 4mm Backing for Granite & Marble

DT-DIATOOL 4-inch dry diamond polishing pads, grit 50, are a flexible, water-free abrasive set designed to quickly shape and polish granite, marble, quartz and tiles.

These 8 pieces of 100mm (4") diameter polishing pads use coarse 50-grit diamond tooling bonded to a thin, flexible 4mm backing for efficient dry grinding and initial polishing of hard stone surfaces. Built for grinders that run between 2500RPM and 4000RPM, the pads balance aggressiveness and control so you can remove material, flatten high spots, and prepare surfaces for finer grits without the need for water — ideal for jobs where dry operation is preferred or water cleanup is impractical.

How do these pads perform on granite and marble?

The coarse 50-grit diamonds are intended for aggressive material removal and surface leveling on hard stones. They remove scratches, lippage, and minor surface damage faster than finer grits while leaving a consistent scratch pattern ready for the next polishing steps.

• Works well on granite, marble, quartz and ceramic tiles.
• Coarse 50-grit for fast stock removal and flattening.
• Flexible 4mm backing follows curved edges and contours.
• Use recommended speeds (2500–4000 RPM) for best results.

Can I use these pads without water and what are the benefits?

Yes — these pads are designed for dry polishing so they work without a water feed. Dry polishing eliminates slurry and water cleanup, making them handy for indoor countertop touch-ups or locations where water could cause issues.

• Dry operation reduces cleanup and avoids water-sensitive areas.
• Less risk of surface staining from water-borne minerals.
• Better for quick on-site repairs and retrofit jobs.
• Use dust extraction or a shop vac to control airborne dust.

What machine speeds and tool compatibility should I use?

These pads are built for standard angle grinders and hand polishers that accept 4" accessories. For consistent performance, run them at or near the recommended 2500 RPM and do not exceed the 4000 RPM maximum rating printed for safety and pad longevity.

• Diameter: 100mm / 4"; Thickness: 4mm.
• Recommended speed: 2500 RPM; Maximum: 4000 RPM.
• Attach to 4" backing pad or holder suited for dry diamond pads.
• Use appropriate PPE and dust control when dry polishing.

How long will each pad last and how should I maintain them?

Pad life depends on material hardness, pressure applied, and operating speed. With moderate pressure and proper speeds, coarse 50-grit pads provide reliable service for shaping and surface prep; rotate through the 8-piece pack to extend overall productivity.

• Pad wear varies by stone hardness and pressure.
• Avoid excessive speed and heat buildup to prolong life.
• Clean debris from the pad face periodically to maintain cutting action.
• Store flat in a cool, dry place to prevent backing distortion.

Who is this for: Tradespeople, countertop fabricators, stone installers, and serious DIYers who need a coarse, dry-working diamond pad to remove material, level surfaces, or create the initial scratch pattern before progressing to finer polishing steps. If you require fast stock removal on granite, marble, quartz or tile without the hassle of water, this 8-piece DT-DIATOOL 50-grit pack offers a practical, jobsite-ready solution.